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Finding the Fourth Proportional to 978,272.20, 1,467,408.30 and 600,358.60

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Solution

The fourth proportional to 978,272.20, 1,467,408.30 and 600,358.60 is: 900,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,272.20 : 1,467,408.30 = 600,358.60 : x
  2. Step 2: Convert to fraction form
    978,272.20/1,467,408.30 = 600,358.60/x
  3. Step 3: Cross multiply
    978,272.20x = 1,467,408.30 × 600,358.60
  4. Step 4: Simplify right side
    978,272.20x = 880,971,192,616.38
  5. Step 5: Solve for x
    x = 880,971,192,616.38/978,272.20
  6. Step 6: Final answer
    x = 900,537.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.